极地研究

极地研究 ›› 2008, Vol. 19 ›› Issue (1-English): 45-53.

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Biogenic silica in surficial sediments of Prydz Bay, Antarctica

 Hu Chuanyu1,2, Xue Bin1, Yu Peisong1 and Pan Jianming1   

  1. 1 Lab of Marine Ecosystem and Biogeochemistry, SOA, Second Institute of Oceanography, SOA, Hangzhou 310012, China;
    2 China University of Geosciences, Wuhan 430074, China
  • 出版日期:1958-03-30 发布日期:1958-03-30
  • 通讯作者: Hu Chuanyu

Biogenic silica in surficial sediments of Prydz Bay, Antarctica

 Hu Chuanyu1,2, Xue Bin1, Yu Peisong1 and Pan Jianming1   

  1. 1 Lab of Marine Ecosystem and Biogeochemistry, SOA, Second Institute of Oceanography, SOA, Hangzhou 310012, China;
    2 China University of Geosciences, Wuhan 430074, China
  • Online:1958-03-30 Published:1958-03-30
  • Contact: Hu Chuanyu

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摘要：

The content and distribution of biogenic silica were investigated in sediment cores from Prydz Bay, Antarctica, during the CHINARE-18/21 cruise. The results show that the content of biogenic silica (BSiO2) is ranged from 4.89% to 85. 41%, and the average content of biogenic silica is 30.90%, the highest value occurred at the Ⅳ-10 station. The profile of BSiO2 in sediment is contrast to that of silicate in the interstitial water. The content of biogenic silica and organic carbon in the surface sediments in the central area of Prydz Bay gyre were much higher than those in other area,and closely related to the Chla content and primary productivity of phytoplankton in the surface water column.

关键词: biogenic silica, surface sediment, organic carbon, Prydz Bay

Abstract:

The content and distribution of biogenic silica were investigated in sediment cores from Prydz Bay, Antarctica, during the CHINARE-18/21 cruise. The results show that the content of biogenic silica (BSiO2) is ranged from 4.89% to 85. 41%, and the average content of biogenic silica is 30.90%, the highest value occurred at the Ⅳ-10 station. The profile of BSiO2 in sediment is contrast to that of silicate in the interstitial water. The content of biogenic silica and organic carbon in the surface sediments in the central area of Prydz Bay gyre were much higher than those in other area,and closely related to the Chla content and primary productivity of phytoplankton in the surface water column.

Key words: biogenic silica, surface sediment, organic carbon, Prydz Bay